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build/node_modules/css-tree/lib/syntax/scope/default.js

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+var cmpChar = require('../../tokenizer').cmpChar;
+var TYPE = require('../../tokenizer').TYPE;
+
+var IDENTIFIER = TYPE.Identifier;
+var STRING = TYPE.String;
+var NUMBER = TYPE.Number;
+var FUNCTION = TYPE.Function;
+var URL = TYPE.Url;
+var NUMBERSIGN = TYPE.NumberSign;
+var LEFTPARENTHESIS = TYPE.LeftParenthesis;
+var LEFTSQUAREBRACKET = TYPE.LeftSquareBracket;
+var PLUSSIGN = TYPE.PlusSign;
+var HYPHENMINUS = TYPE.HyphenMinus;
+var COMMA = TYPE.Comma;
+var SOLIDUS = TYPE.Solidus;
+var ASTERISK = TYPE.Asterisk;
+var PERCENTSIGN = TYPE.PercentSign;
+var BACKSLASH = TYPE.Backslash;
+var U = 117; // 'u'.charCodeAt(0)
+
+module.exports = function defaultRecognizer(context) {
+    switch (this.scanner.tokenType) {
+        case NUMBERSIGN:
+            return this.HexColor();
+
+        case COMMA:
+            context.space = null;
+            context.ignoreWSAfter = true;
+            return this.Operator();
+
+        case SOLIDUS:
+        case ASTERISK:
+        case PLUSSIGN:
+        case HYPHENMINUS:
+            return this.Operator();
+
+        case LEFTPARENTHESIS:
+            return this.Parentheses(this.readSequence, context.recognizer);
+
+        case LEFTSQUAREBRACKET:
+            return this.Brackets(this.readSequence, context.recognizer);
+
+        case STRING:
+            return this.String();
+
+        case NUMBER:
+            switch (this.scanner.lookupType(1)) {
+                case PERCENTSIGN:
+                    return this.Percentage();
+
+                case IDENTIFIER:
+                    // edge case: number with folowing \0 and \9 hack shouldn't to be a Dimension
+                    if (cmpChar(this.scanner.source, this.scanner.tokenEnd, BACKSLASH)) {
+                        return this.Number();
+                    } else {
+                        return this.Dimension();
+                    }
+
+                default:
+                    return this.Number();
+            }
+
+        case FUNCTION:
+            return this.Function(this.readSequence, context.recognizer);
+
+        case URL:
+            return this.Url();
+
+        case IDENTIFIER:
+            // check for unicode range, it should start with u+ or U+
+            if (cmpChar(this.scanner.source, this.scanner.tokenStart, U) &&
+                cmpChar(this.scanner.source, this.scanner.tokenStart + 1, PLUSSIGN)) {
+                return this.UnicodeRange();
+            } else {
+                return this.Identifier();
+            }
+    }
+};